[PATCH] nfsd: deleting symlinks over nfs causes oops on unmount
From: "J. Bruce Fields" <bfields@fieldses.org>
From: Neil Brown <neilb@cse.unsw.edu.au>
This fixes an oops on unmount (failure of the assertation at
fs/ext3/super.c:421). Probably reproduceable just by creating and deleting a
single symlink over nfs and then unmounting the exported filesystem.
Recent change to fh_compose means dentry reference is *not* consumed, and so
usually has to be explicitly dput afterwards. One usage was missed in that
patch, so this dput is needed.
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